JPH0962672A - Japanese input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently input Japanese by correcting a character which cannot be (Japanese syllabary) converted into KANA due to a keying error by a correction candidate character based on key arrangement. SOLUTION: This Japanese input device is provided with a keyboard 1, an input control part 2 for inputting ROMAJI(Roman alphabet), an input character string storage part 3 for storing an input character string, a KANA/KANJI (Chinese character) conversion control part 4 for converting a ROMAJI string to KANA and converting it into KANJI by a KANA/KANJI conversion instruction, a correction part 7 for correcting the character string which can not be converted into KANA and a correction chart 8 for registering the correction candicate character determined by the key arrangement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Japanese input device such as a Japanese word processor for inputting documents in Roman characters. In particular, an English character string which cannot be converted into Roman characters and Kana due to a typing error is determined by a key position on the keyboard. The present invention relates to a Japanese input device that corrects by English characters and performs Roman-Kana conversion.

[0002]

2. Description of the Related Art Conventionally, regarding the correction of an input error due to a keystroke error, for example, according to Japanese Patent Laid-Open No. 60-97426, "input error statistics" created by statistically processing information of an input error that is easy for an operator to commit. It is disclosed that an input error portion is automatically corrected using a "data table". The Japanese input device for correcting input errors in this publication cannot correct input errors if the input error word does not exist in the input error statistical data table. Moreover, in order to correct many input errors, it is necessary to set as many input error patterns as possible in the input error statistical data table.

[0003]

In order to correct as many input errors as possible by the above-described input error correction method, it is necessary to collect many input error patterns and register them in the input error statistical data table. . Therefore, it is inevitable that the table becomes large, and a huge amount of labor is required to collect the pattern.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to automatically correct keystroke errors in order to reduce the number of times of keystrokes due to keystroke errors. The correction candidate characters are limited to patterns based on the key arrangement and registered in the correction table to make the table small and to facilitate the creation of the table.

Therefore, the keyboard of the present invention capable of keying Japanese characters in Roman alphabets, the input control unit for inputting the Roman characters keyed by the keyboard, and the Roman character string and the Kana character string after Kana conversion are stored. An input character string storage unit, a Kana-Kanji conversion control unit that converts the Roman character string to a Kana-Kanji character string and converts the Kana-Kanji character string to a Kana-Kanji character, and a Kana-Kanji character that is output from the Kana-Kanji conversion control unit. In a Japanese input device, comprising: an output character string storage unit for storing mixed character strings, in the Kana character string, one or two or more characters that are not Kana-converted due to a typing error are found, and the character string is When the character is one character, the character itself is registered. When the alphabetic character string is a character string of two or more characters, the second character from the beginning is registered. A correction unit that replaces the correction candidate character in the front table, and a Kana-Kanji conversion control unit that selects the correction character of the English character string by performing Kana conversion or Kana-Kanji conversion of the character string replaced by the correction candidate character, It is characterized by having.

Further, the correction table of the present invention is characterized in that, for each of the alphabetic keys of the keyboard, the alphabetical characters of the keys located on the left and right and up and down of the key, and on the left and right diagonally up and down are registered as correction candidate characters. To do.

Furthermore, the kana-kanji conversion control unit of the present invention, when there is only one correction candidate character that can be converted to kana in the character string replaced with the correction candidate character in the correction table, the correction candidate character If there are multiple correction candidate characters that can be converted to Kana by selecting them as correction characters, the Kana-converted Kana character strings are converted to Kana-Kanji, and the correction candidate character with the largest number of Kanji candidates is set as the correction character. It is characterized by selecting.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of the Japanese input device of the present invention. 2 is a flowchart showing the overall operation of the Japanese input device, FIG. 3 is a flowchart showing the operation of the Kana-Kanji conversion control unit 4, FIG. 4 is a flowchart showing the operation of the correction unit 7 of the correction device 5, and FIG. 5 is a correction table. 8 shows the data structure of 8 respectively. 6 and 7 each illustrate correction of a keystroke error.

Referring to FIG. 1 showing the configuration of the Japanese input device of this embodiment, a keyboard 1 for accepting character input.
, An input control unit 2 for performing Kana conversion of Kana-Kanji conversion by Kanji and Kana-Kanji conversion instruction, an input character string storage unit 3 for storing a Romaji string or a Kana character string, and a Kana conversion for the Romaji string to obtain a Kana character string. In contrast, a Kana-Kanji conversion control unit 4 that performs Kana-Kanji conversion, a correction device 5 that corrects English characters that cannot be converted to Kana, and an output character string storage unit 6 that stores a character string of a Kana-Kanji mixed sentence to be output. Have

The correction device 5 includes a correction unit 7 for replacing an alphabetic character that cannot be converted into Kana in the Roman character string with a correction candidate character, and a position on the keyboard in the left / right / upper / left / right diagonal up / down directions. And a correction table 8 registered for each of the alphabetic keys as the correction candidate character.

First, the operation of the entire Japanese input device for input and Kana-Kanji conversion processing in the embodiment of FIG. 1 when there is no keystroke error will be described with reference to FIG. When a key is pressed on the keyboard 1 and an alphabetic character is input (step 21), the input control unit 2 stores the Roman character string in the input character string storage unit 3 (step 22). This Roman character string is passed to the kana-kanji conversion control unit 4 and converted into kana (step 23). The kana character string is stored again in the input character string storage unit 3 (step 24), passed to the output character string storage unit 6 (step 25), and the character input ends.

Next, referring to FIG. 3 showing the operation of the kana-kanji conversion controller 4 for converting a kana character string into kanji, when a conversion command is input (the conversion key is pressed) (step 32),
The input control unit 2 receives the conversion command and notifies the Kana-Kanji conversion control unit 4 of the conversion command. Kana-Kanji conversion control unit 4
Then, a kana character string to be converted into kana-kanji is acquired from the input character string storage unit 2 (step 33), and it is searched whether or not there is an alphabetic character that cannot be converted into kana due to a keystroke error (step 3).
4). If there is no keystroke error, there is no character string that cannot be converted to kana and remains as an alphabetic character (No in step 35), so kana-kanji conversion is performed (step 39), and the character string is output to the character string storage unit. 6 (step 40),
The kana-kanji conversion process ends.

Next, if there is a keystroke error, the user tried to input the character string "Kinou" illustrated in FIG. 6 and mistakenly entered "y" as the last "u". The operation of this embodiment will be described below.
It is as described above until the input of the alphabetic character "kinoy" and the search for whether there is a keying error by the conversion command. When the Kana character string is scanned and an alphabetic character string that cannot be converted to Kana is found, in the example of FIG. 6, the “y” of “kino y” remains as it is in Roman letters as shown by 62. As shown, "y" is determined to be a keystroke error (YES in step 35). Since there is an alphabetic character string that could not be converted to kana, correction processing (step 36) is performed.

Referring to FIG. 4 which is a flow chart showing the operation of the correction section 7, the correction section 7 acquires the character string of the part which cannot be converted into kana (step 41). Correction unit 7
Determines whether or not the character string that could not be converted to kana has two or more characters (step 42). If the character string that could not be converted to kana is one character (N in step 42)
O), the character is the correction target (step 44). If the character string that could not be converted to kana is two or more characters (YES in step 42), the next character is set as the correction target character (step 43). As shown by 62 in FIG. 6, in the case of “Kino y”, the character string that could not be converted is “y”, but since it is judged that the number of characters is not two or more (NO in Step 42), 1 The character "y" is to be corrected (step 44). Next, a correction candidate character that replaces the correction target character is acquired from the correction table 8 (step 4).
5). In the data of the correction table 8, the characters at the eight positions of the key position up / down / left / right / left / right obliquely up / down are registered as correction candidate characters for the correction target character for each alphabetic character. For the correction target character “y” 56, “h, t, u, g,
“J” is registered as a correction candidate character that replaces “y” 56. The correction unit 7 acquires the correction candidate character (step 45), replaces the correction target character with the correction candidate character and performs kana conversion (step 46), and can convert the kana converted character into kana. Judge whether there is something. If there is a character that can be converted to kana (YES in step 47), the character that can be converted to kana is used as a correction character and replaced with an erroneously input character of a keystroke error (step 48). If there are no characters that can be converted to Kana (NO in step 47), the process proceeds to the next process without any correction. In the example of FIG. 6, “h, t,
As a result of replacing each of "u, g, j" with "y" and converting to kana, "u" can be converted to "kino" by kana when replaced with "u". Is the correction character. As shown at 64 in FIG. 6, "y" is replaced with "u" and correction is performed (step 48). After replacement
Next, the character to be corrected is obtained (step 49), and it is determined whether or not there is a character that has been keyed incorrectly. Further, if there is a correction target character (YES in step 50),
The process returns to immediately before it is determined whether the character string to be corrected has two or more characters (step 41), and the correction process is performed again. Figure 6
If there is no character to be corrected as illustrated in (No in step 50), the “Kino u” replaced with the corrected character is passed to the kana-kanji conversion control unit 4 (step 51),
Therefore, conversion to kana is performed again, and "kino u" becomes "kino" as shown at 65 in FIG. The “Kinou” converted into kana is stored in the input character string storage unit 3 and then in the output character string storage unit 6, and “Kinou” is displayed on the screen as shown at 66 in FIG.

Next, a case will be described in which "Ashi ts" is displayed because "Ashi" has been input because the user made a mistake in typing the last "a" to input "Ashi" illustrated in FIG. "A
As described above, the input of the conversion command after inputting "shits" and the search for the character having a keystroke error is as described above. In this example, since "ts" remains as an alphabetic character as it is, it is determined to be a keystroke error. In the correction unit 7, “t
In step 42, it is determined whether the character string to be corrected has two or more characters. However, since this condition is satisfied (YES in step 42), the next character, that is, "s" is determined.
Is the correction target character (step 43). Next correction table 8
To “s” 57, the candidate characters “w, x, a,
"d, q, z, e, c" are acquired (step 45). When the acquired candidate characters are replaced with "s" and converted into kana by the kana-kanji conversion control unit 4 (step 46), the characters that can be converted into kana are "a" and "e". It becomes one. The two conversion results are "tomorrow" and "tomorrow". If there are multiple candidate characters that can be converted to kana, the kana-kanji conversion control unit 4 acquires the number of conversion candidates for converting kana to kanji from the kana-kanji conversion dictionary,
The one with the larger number of candidates is the correction character. The number of candidates for converting the above two words into Kanji is acquired.
There is one conversion candidate for "Tomorrow"("Tomorrow")
There is no conversion candidate for "Ashi". Therefore, in this case, "a" is "Tomorrow".
Is determined to be a correction character (YES in step 47), and “t
“S” is corrected to “ta” (step 48, 7 in FIG. 7).
4). Then, the next character is acquired (step 49), and it is determined whether there is a character to be corrected (step 5).
0), because there is no character already (NO in step 50),
The correction result is passed to the Kana-Kanji conversion control unit 4 (step 5
1), and converted to kana as "Tomorrow" (75 in FIG. 7).
The character string converted into kana is stored in the input character string storage unit 3 and passed to the output character string storage unit 6 (76 in FIG. 7).

[0017]

As described above, according to the present invention,
By correcting a typing error with a correction candidate character determined by the key arrangement, the number of times of typing due to a typing error can be reduced, and efficient Japanese input can be performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a flowchart illustrating the operation of the embodiment of FIG.

FIG. 3 is a flowchart showing an operation of a kana-kanji conversion control unit of FIG.

FIG. 4 is a flowchart showing the operation of the correction unit in FIG.

5 is a diagram showing a data structure of a correction table in FIG.

FIG. 6 is a diagram showing an example of correcting a case of one character.

FIG. 7 is a diagram showing an example of correcting a case of two characters.

[Explanation of symbols]

 1 keyboard 2 input control unit 3 input character string storage unit 4 kana-Kanji conversion control unit 5 correction device 6 output character string storage unit 7 correction unit 8 correction table

Claims (3)

[Claims] 1. A keyboard capable of typing Japanese in roman alphabets by English letters, an input control unit for inputting Roman letters typed by the keyboard, and an input character string for storing the Roman character string and the Kana character string after Kana conversion. Storage part,
A Kana-Kanji conversion control unit that converts the Roman character string into a Kana-Kanji character string and converts the Kana character string into a Kana-Kanji character by a Kana-Kanji conversion command, and a Kana-Kanji mixed character string output from the Kana-Kanji conversion control unit are stored. In a Japanese input device comprising an output character string storage unit, in the Kana character string, one or two or more characters that are not Kana-converted due to a typing error are found, and if the English character string is one character, the The character itself is 2
In the case of a character string of more than letters, a correction unit that replaces the second character from the beginning with the correction candidate character of the correction table that registers the correction candidate character, and the character string replaced with the correction candidate character is Kana-converted or Kana converted. A Japanese input device, comprising: a kana-kanji conversion control unit that selects a corrected character of the English character string by performing kanji conversion. 2. The correction table registers, for each of the alphabetic keys of the keyboard, the alphabetical characters of the keys located on the left, right, top and bottom of the key and diagonally above and below the left and right as correction candidate characters. Japanese input device described in 1. 3. The kana-kanji conversion control unit selects the correction candidate character as a correction character when there is only one correction candidate character that can be converted into kana in the character string replaced with the correction candidate character in the correction table. However, when there are a plurality of correction candidate characters that can be converted to Kana in the character string, the Kana-converted Kana character strings are converted into Kana-Kanji characters, and the correction candidate character with the largest number of Kanji candidates is selected as the correction character. The Japanese input device according to claim 1, which is characterized in that.